Club head having enhanced striking power

ABSTRACT

A club head having enhanced striking power includes a hollow chamber, a striking face on one side, and at least one hollow guiding member directing towards the backside of the striking face. The guiding member houses a balance weight which is slidable back and forth therein, and at least one buffer member on the front or rear side of the balance weight. Thereby the striking power of the club head can be enhanced, and the striking direction of the ball is steadier.

FIELD OF THE INVENTION

The present invention relates to a golf club head and particularly to aclub head that has a piston track to enhance the striking effect andprovide a steady striking direction of the ball.

BACKGROUND OF THE INVENTION

The conventional golf club has to go through calibration and adjustmentbefore shipping from the plant. As individual-golfers have differentswinging postures and strengths, to make the golf club to fit varyinghabit of each golfer and provide the optimal striking effect, mostgolfer producers have devoted a great deal of research and investment toimprove the club head such as balance weight, material and the like sothat it can meet different requirements of users and help the users toachieve the optimal striking effect.

FIG. 1 illustrates a conventional “Improved golf club head for enhancingstriking power”. The club head 1 has a hollow chamber 10 and an archedguiding duct 12 corresponding to a striking face 11. The striking face11 has a plurality of air vents III. There are a spherical conicalportion 121 and a plurality of injection holes 122 at a tail end of thearched guiding duct 12. The arched guiding duct 12 has one end fastenedto an inner wall of the striking face 11 and another end fastened to aninner wall of an opening 13 formed on an upper surface of the club head1 that is to replace a ball type thrust member 14. The opening 13 issealed through a movable lid 131 by screwing. Different sizes andweights of the ball type thrust member 14 may be replaced through theopening 13 to suit user's different needs and preferences. Hence whenthe user swings the club, air passes through the air vents 111 into thehousing chamber 10 and enters the arched guiding duct 12 to move theball type thrust member 14. The thrust of the gravity accelerationgenerated by the ball thrust member 14 generates a relative impact onthe backside of the striking face 11 when the striking face 11 strikesthe golf ball. Therefore, the striking force on the golf ball increases,and the striking effect is enhanced.

The aforesaid structure enhances the striking efficiency of the golfclub head through a movable gravity center. However, the ball typethrust member 14 moves excessively during the club is swung, handlingand control are difficult. Moreover, hitting of the ball type thrustmember 14 on the backside of the striking face 11 generates a returnforce which strays the sweet spot. Hence although such a design canenhance the striking force, the flying direction of striking ball isdifficult to control.

SUMMARY OF THE INVENTION

Therefore the primary object of the present invention is to solve theaforesaid disadvantage by providing a golf club head that has a pistontrack.

The invention has the following features:

The club head according to the invention has a transverse guiding memberopposing the backside of a longitudinal striking face. The guidingmember houses a balance weight which is movable back and forth in aconstant direction in the guiding member. There is at least one buffermember located in the moving direction on the front or rear side of thebalance weight. The guiding member has an opening on a distal end to becoupled with a screw head. The duct type guiding member also houses aguiding rod to pass through a through hole formed on the balance weight.The guiding member may also be a rod, or a duct extended transverselyfrom the backside of the striking face.

The foregoing, as well as additional objects, features and advantages ofthe invention will be more readily apparent from the following detaileddescription, which proceeds with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view of an improved conventional golf club headfor enhancing the striking power.

FIG. 2A is a sectional view of an embodiment of the present invention.

FIG. 2B is a cross section taken on line 2B-2B in FIG. 2A.

FIG. 3 is a schematic view of a first embodiment of the presentinvention in a use condition.

FIG. 4 is a schematic view of a first embodiment of the presentinvention in another use condition.

FIG. 5 is a sectional view of a second embodiment of the presentinvention.

FIG. 6 is a sectional view of a third embodiment of the presentinvention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Please refer to FIGS. 2A and 2B. The club head having enhanced strikingpower of the invention includes a club head 2 which has a hollow chamber20, a striking face 21 which has a longitudinal flat surface on a frontend, and at least one transverse duct type guiding member 22 extended inthe housing chamber 20 towards a backside of the longitudinal strikingface 21. In this embodiment, three guiding members 22 are provided. Eachof the guiding members 22 has a housing space 221 to hold a balanceweight 23 which is slidable back and forth in the housing space 221. Twobuffer members 25 (such as springs) that are extendable axially arelocated on the front and rear sides of the balance weight 25 in thehousing space 221. The housing space 221 has an opening on a distal endto be coupled with a screw head 24. The guiding member 22 further has aguiding rod 222 to run through a through hole 231 formed in the centerof the balance weight 23 and the center of the two buffer members 25.Thereby the friction between the balance weight 23 and the inner wall ofthe housing space 221 of the guiding member 22 can be reduced withoutdiminishing the sliding effect.

The weight of the balance weight 23 may vary according to differentrequirements of users. The buffer members 25 may also be extendable anddeformable foamed plastics, or a fluid filler such as oil filled in thehousing space when the opening of the guiding member 22 is sealed by thescrew head 24.

Refer to FIGS. 3 and 4, when in use and the club head 2 is swung by auser, the balance weight 23 is moved rearwards due to the centrifugalforce. When the club head 2 strikes a golf ball 3, the instantaneousimpact between the striking face 21 and the golf ball 3 moves thebalance weight 23 forwards because of the thrust of the gravity force.The gravity center of the club head 2 also moves forwards. Theinstantaneous moving of the gravity center of the club head 2 occurswhether the balance weight 23 hits the inner wall of the striking face21 or not. Hence impact to the gold ball 3 is greater and the golf ball3 can fly at a greater distance. The buffer members 25 can reduceVibration of the balance weight 23. Namely, while the balance weight 23thrusts forwards due to the gravity force caused by the instantaneousimpact resistance between the striking face 21 and the golf ball 3, thethrust force for moving the balance weight 23 to the stop position isreduced, hence the oscillation that might otherwise occur to the clubhead 2 is eliminated. As a result, the striking direction of the ball issteadier. Referring to FIG. 2B, the optimum position of the balanceweight 23 is on two sides or the sweet spot (central position) of thestriking face 21 so that the striking face 21 can have a steadierhitting angle on the golf ball 3.

By means of the structure set forth above, the golf club 2 not only canincrease the striking distance of the ball, the balance weight 23 ismoved on a correct and constant track to increase the striking stabilityto achieve a steadier striking direction when the striking face 21 hitsthe golf ball 3 even if the swinging posture of the user is flawed andthe club face is not correct. In addition, if the balance weight 23 islocated in the center of the striking face 21, the sweet spot is larger.

Refer to FIG. 5 for a second embodiment of the invention. Under thecondition of without affecting the return force of the striking face 21and the sweet spot, the guiding member 22 may be formed by extendingtransversely from the rear end of the longitudinal striking face 21.Similarly, the duct type guiding member 22 has a housing space 221 tohold a balance weight 23, and buffer members 25a in the moving directionon the front and rear ends of the balance weight 23 that are movableback and forth. The juncture of the guiding member 22 and the club head2 is fastened by a screw head 24 to confine the moving range of thebalance weight 23. And different weights of the balance weight 23 can bereplaced to suit different users.

Similarly, the duct type guiding member 22 can have a guiding rod 222 torun through the through hole 231 of the balance weight 23 to reduce thecontact area of the balance weight 23 and increase the slidingcapability.

The buffer members 25 and 25 a may be extendable and deformable foamedplastics, rubber, springs or the like. If the duct type guiding member22 is sealed, the buffer members 25 and 25a may also be substituted by afluid filler such as oil.

Refer to FIG. 6 for a third embodiment of the invention. It includes atleast one bar type guiding member 22 transversely extended from one endopposing the longitudinal striking face 21. A balance weight 23 with athrough hole 231 is run through by the guiding member 23 and slidablethereon. There are buffer members 25 in the moving direction on thefront and rear ends of the balance weight 23 relative to the strikingface 21 that are movable back and forth. The guiding member 22 has adetent member 220 on a distal end to prevent the balance weight 23 andthe buffer members 25 from escaping. The buffer members 25 areextendable and deformable, and may be made from foamed plastics, rubber,springs or the like.

1. A club head having enhanced striking power, comprising a club headwhich has a hollow chamber, a striking face on a front end, and aguiding member on a rear side opposing a backside of the striking face,the guiding member having a duct type housing space to hold a balanceweight which is slidable back and forth and at least one buffer memberlocated on a front side or rear side of the balance weight.
 2. The clubhead having enhanced striking power of claim 1, wherein the guidingmember is a duct extended transversely from the backside of the strikingface and has an opening on a distal end coupled with a screw head. 3.The club head having enhanced striking power of claim 2, wherein thebuffer member is an extendable and deformable elastic element andselected from the group consisting of springs, rubber and foamedplastics.
 4. The club head having enhanced striking power of claim 2,wherein the duct guiding member houses a guiding rod which runs througha through hole formed in the center of the balance weight and the buffermember.
 5. The club head having enhanced striking power of claim 2,wherein the buffer member is fluid.
 6. The club head having enhancedstriking power of claim 1, wherein the guiding member is a duct extendedfrom the club head towards the backside of the striking face and has anopening on a distal end coupled with a screw head.
 7. The club headhaving enhanced striking power of claim 6, wherein the buffer member isan extendable and deformable elastic element and selected from the groupconsisting of springs, rubber and foamed plastics.
 8. The club headhaving enhanced striking power of claim 6, wherein the housing space ofthe guiding member houses a guiding rod, the balance weight having athrough hole in the center running through by the guiding rod.
 9. Theclub head having enhanced striking power of claim 6, wherein the buffermember is fluid.
 10. The club head having enhanced striking power ofclaim 1, wherein the guiding member is a rod extended transversely fromthe backside of the striking face, the balance weight and the buffermember having respectively a through hole in the center to be runthrough by the guiding rod, the guiding member having a distal endcoupled with a detent member.
 11. The club head having enhanced strikingpower of claim 10, wherein the buffer member is an extendable anddeformable elastic element and selected from the group consisting ofsprings, rubber and foamed plastics.
 12. The club head having enhancedstriking power of claim 1, wherein the guiding member is a rod extendedfrom the club head towards the backside of the striking face, thebalance weight and the buffer member having respectively a through holein the center to be run through by the guiding rod, the guiding memberhaving a distal end coupled with a detent member.
 13. The club headhaving enhanced striking power of claim 12, wherein the buffer member isan extendable and deformable elastic element and selected from the groupconsisting of springs, rubber and foamed plastics.
 14. The club headhaving enhanced striking power of claim 1, wherein the buffer member isan extendable and deformable elastic element and selected from the groupconsisting of springs, rubber and foamed plastics.